Investigating Auto Adjusting Dynamic AFO

NCT04623853•University of Washington

Summary

Offloading Ankle Foot Orthoses (AFOs) are devices designed for people following lower-limb reconstruction to restore mobility by reducing mechanical loading through the injury site and redistributing it proximally. While they perform well for some users, their current form limits full functional potential and may put joints proximal to the injury at risk of long-term damage. This study is directed toward designing and testing a lightweight, variable stiffness, dynamic brace that can adjust in response to user activity.

Eligibility

Age

18 - No limit years

Sex

ALL

Healthy Volunteers

Yes

Inclusion Criteria

•able to run continuously for 1 minute
•prescribed an offloading Ankle-Foot Orthosis (AFO) for walking/running
•Use prescribed offloading AFO at least 20 hours per week
•Prescribed AFO strut length of at least 200 mm
•Able to run continuously for 1 minute

Exclusion Criteria

•limited sensation in the lower limbs
•use an assistive device
•Unable to ambulate (walk/run) continuously with AFO for at least 1 minute
•Unable to sit, stand, or negotiate a step onto lab treadmill

Locations (1)

University of Washington, Dept. of Bioengineering

Seattle, Washington, United States

Key Dates

Start Date

November 30, 2020

Primary Completion Date

September 30, 2024

Completion Date

December 1, 2024

Last Updated

April 18, 2023

Enrollment

ESTIMATED participants

Conditions

Lower Limb; Fusion, CongenitalLower Limb FractureAnkle Foot Injury

Interventions

Variable Stiffness AFO

DEVICE

Contacts

Daniel Ballesteros, BS

CONTACT

206-221-5873 danielb25@uw.edu

Katheryn Allyn, CPO, LPO

CONTACT

206-390-0228

OsteoPorotic fracTure preventION System (OPTIONS) Research Study

NCT06731608

OsteoporosisLower Limb Fracture

View study

Data Source & Attribution

This clinical trial information is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

ClinicalTrials.gov last update: April 18, 2023Data synced to Clareo: March 29, 2026

Modifications: This data has been reformatted for display purposes. Eligibility criteria have been parsed into inclusion/exclusion sections. Location data has been geocoded to enable distance-based search. For the authoritative and most current information, please visit ClinicalTrials.gov.

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